Lua APA (7ú heag.)

UNWIN W R. (1983). MASTERING BUSINESS COMMUNICATION. MACMILLAN.

Lua i Stíl Chicago (17ú heag.)

UNWIN W R. MASTERING BUSINESS COMMUNICATION. LONDON: MACMILLAN, 1983.

Lua MLA (9ú heag.)

UNWIN W R. MASTERING BUSINESS COMMUNICATION. MACMILLAN, 1983.

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